Expansion joints play a crucial role in the waste heat boiler industry. First of all, the expansion joint is an important part in the boiler system, which is mainly used to absorb the thermal expansion inside the boiler and compensate the thermal displacement of the flue gas pipe. During the operation of the boiler, due to the heat generated by fuel combustion, the temperature inside the boiler will continue to rise, resulting in thermal expansion of the furnace, flue and other components. At the same time, the flue gas pipeline will also cause thermal expansion and displacement due to the heating of high-temperature flue gas. To ensure the safe operation of the boiler system, expansion joints must be provided to absorb these thermal expansions and displacements.

In addition, the expansion joint has the advantages of reliable operation, good performance, compact structure, etc. It can expand and contract freely and effectively compensate the axial deformation. For example, corrugated expansion joints are widely used in the connection between pipelines and pipelines, pipelines and equipment, and equipment and equipment, and have the performance that can meet the compensation of axial expansion and contraction, transverse translation or angular displacement, so as to compensate the relative displacement caused by temperature difference or geological reasons in the pipeline system, and effectively absorb the vibration under the starting, stopping or normal operation conditions of equipment.

In summary, the main uses of expansion joints in the waste heat boiler industry are to ensure the safe operation of the boiler system, improve the stability and reliability of the system, and effectively absorb and compensate for various displacements and deformations caused by temperature changes or mechanical vibrations.